Most likely all you require is the latest DirectX from Microsoft - go to their website, and run their web installer to make sure you are up to date. You may think your system is current, but in my experience going to the MS site and doing the web install for the latest DirectX will fix most issues even when one believes they already have the latest software. The X_Audio errors you are getting indicate missing DirectX files, meaning you probably have a slightly different version of DirectX than what was used to build the game EXE.
Let me know if that works.
Gambit Realm development team